Long recognized as the ultimate collector’s Bible, the initial aim of the “Guide” was to accurately identify every circulating (and, in some cases, not circulating) scrap of Beatles audio and to tell collectors what the best quality source is. It’s long since outgrown the title, though, and in later editions encompasses all available Beatles’ recordings, examining the differences between the legitimately released stereo and mono mixes, and the mix differences that exist between various formats and in various countries. Most recently, the “Guide” has been renamed “The Complete Beatles’ Audio Guide.” The paperback edition is currently out of stock, but a limited hardcover reprint (completely revised, of course!) will be appearing soon. 

REVIEWS:

“Doug Sulpy’s reputation as the world’s leading expert on Beatles outtakes goes well before him on this one. Invaluable... buy it now!!” - British Beatles Fan Club No. 10, 2003

“Even casual collectors will enjoy reading about the ever-growing range of Beatles bootlegs - and the ones that Sulpy considers to be indispensable.” - Gillian G. Gaar. - Record Collector (?)
THE 910’S GUIDE to the BEATLES’ OUTTAKES /
THE COMPLETE BEATLES’ AUDIO GUIDE